Question

Sun burning can be seen as: a. the failure of an adaptation when normal (historical) environmental variation is exceeded. b. a misfiring of the mRNA system in cases where the ribosome is damaged. c. an adaptive response to avoid skin cancer. d. a result of too much vitamin D e. none of the above is correct

Answer 1

Sunburn is caused by excessive UV radiation that exceeds the protective capacity of the skin's pigment melanin and can lead to the failure of skin cell adaptations. It is incorrect to state that it is a result of a translation failure or too much vitamin D. DNA damage from UV exposure without proper repair can lead to skin cancer such as malignant melanoma.

Step-by-step explanation:

Sunburn is the result of skin damage caused by overexposure to ultraviolet (UV) radiation, primarily UV-B and UV-C types. This damage occurs when the amount of UV radiation exceeds the protective capacity of melanin, the skin's pigment. Therefore, the correct answer to the statement is a. the failure of an adaptation when normal (historical) environmental variation is exceeded. Sunburn indicates that the skin's adaptations for dealing with UV radiation have been overwhelmed. It is not correct that it is a translation failure or that sunburn is caused by too much vitamin D.

When UV radiation damages DNA and the DNA repair mechanisms fail, this can lead to mutations such as malignant melanoma, a serious type of skin cancer. While the body has defense mechanisms such as tanning, which involves producing additional pigments to protect deeper skin layers, excessive UV exposure can still result in harmful mutations and increase the risk of skin cancer.

Answer 2

Answer: The correct option is E.

none of the above is correct

Step-by-step explanation:

This is because sun burning refer to the over exposure of the skin to Ultraviolet radiations of the sun. It is as a result of too much exposure if the genetic content if the skin cells to Ultraviolet radiations of the sun and the symptoms include skin redness, the skin become swollen and sometimes wrinkled.